:root {
    color-scheme: light;
    --paper: #f7f7f5;
    --white: #fff;
    --ink: #0a0b0d;
    --muted: #60646b;
    --line: rgba(10, 11, 13, .14);
    --blue: #156ff5;
    --soft-blue: #eaf2ff;
    --shadow: 0 24px 70px rgba(28, 33, 43, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; min-width: 320px; }
body { margin: 0; overflow-x: hidden; color: var(--ink); background: var(--paper); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; letter-spacing: 0; }
a { color: inherit; }

.site-header {
    position: absolute;
    inset: 0 0 auto;
    z-index: 20;
    display: flex;
    width: min(1440px, calc(100% - 64px));
    min-height: 84px;
    margin: 0 auto;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(10, 11, 13, .1);
}
.site-brand { display: inline-flex; align-items: center; gap: 11px; font-size: 17px; font-weight: 760; text-decoration: none; }
.site-brand img { width: 36px; height: 36px; border-radius: 6px; object-fit: contain; background: #fff; }
.site-nav { display: flex; align-items: center; gap: 30px; }
.site-nav a { position: relative; font-size: 13px; font-weight: 650; text-decoration: none; }
.site-nav a::after { position: absolute; right: 0; bottom: -7px; left: 0; height: 1px; background: var(--ink); content: ""; transform: scaleX(0); transition: transform .2s ease; }
.site-nav a:hover::after { transform: scaleX(1); }
.site-nav .management-link { padding: 10px 16px; border: 1px solid var(--ink); border-radius: 6px; }
.site-nav .management-link::after { display: none; }
.nav-trigger { display: none; }

.hero { position: relative; min-height: 88svh; overflow: hidden; background: #ecefed; }
.hero-image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(249, 250, 248, .98) 0%, rgba(249, 250, 248, .9) 31%, rgba(249, 250, 248, .28) 55%, rgba(249, 250, 248, 0) 75%); }
.hero-content { position: relative; z-index: 2; display: flex; width: min(1440px, calc(100% - 64px)); min-height: 88svh; margin: 0 auto; flex-direction: column; justify-content: center; align-items: flex-start; padding: 126px 0 82px; }
.eyebrow { margin: 0 0 16px; color: var(--blue); font-size: 11px; font-weight: 800; text-transform: uppercase; }
.hero h1 { margin: 0; font-size: 112px; font-weight: 690; line-height: .86; }
.hero-statement { margin: 26px 0 0; font-size: 50px; font-weight: 640; line-height: 1.02; }
.hero-copy { margin: 24px 0 0; color: #41464d; font-size: 17px; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin-top: 34px; }
.button { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; border: 1px solid transparent; border-radius: 6px; padding: 0 20px; font-size: 13px; font-weight: 750; text-decoration: none; transition: transform .2s ease, background .2s ease, color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #fff; background: var(--blue); }
.button-secondary { border-color: var(--line); background: rgba(255, 255, 255, .72); backdrop-filter: blur(14px); }
.button-dark { color: #fff; background: var(--ink); }
.text-action { margin-left: 8px; font-size: 13px; font-weight: 750; text-decoration: none; }
.text-action span { margin-left: 6px; color: var(--blue); }
.hero-scroll { position: absolute; right: 32px; bottom: 28px; z-index: 3; display: flex; align-items: center; gap: 12px; font-size: 11px; font-weight: 700; text-decoration: none; }
.hero-scroll i { display: block; width: 38px; height: 1px; background: var(--ink); }

.experience-showcase, .expertise, .tracking-feature, .contact-section { width: min(1440px, calc(100% - 64px)); margin: 0 auto; }
.experience-showcase { padding: 110px 0 120px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; margin-bottom: 42px; }
.section-heading h2, .expertise h2, .market-feature h2, .tracking-feature h2, .contact-section h2 { margin: 0; font-size: 70px; font-weight: 620; line-height: .98; }
.experience-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.experience-card { position: relative; display: flex; overflow: hidden; min-height: 460px; flex-direction: column; justify-content: space-between; border-radius: 8px; padding: 30px; color: #fff; background: #111; box-shadow: var(--shadow); text-decoration: none; touch-action: manipulation; transform-style: preserve-3d; transition: transform .28s cubic-bezier(.2,.75,.2,1), box-shadow .28s ease, filter .28s ease; }
.experience-card::before { position: absolute; inset: 0; background-size: cover; content: ""; transition: transform .55s cubic-bezier(.2,.75,.2,1), filter .35s ease; }
.experience-card:hover::before { transform: scale(1.025); }
.experience-card:active { filter: brightness(.96); transform: scale(.992); }
.experience-service::before { background-image: linear-gradient(180deg, rgba(0,0,0,.02) 20%, rgba(0,0,0,.76) 100%), url("/static/asc-os/media/experience-service.webp"); background-position: center; }
.experience-market::before { background-image: linear-gradient(180deg, rgba(0,0,0,.02) 18%, rgba(0,0,0,.78) 100%), url("/static/asc-os/media/experience-market.webp"); background-position: center; }
.experience-tracking::before { background-image: linear-gradient(180deg, rgba(6,20,36,.04) 18%, rgba(4,17,34,.82) 100%), url("/static/asc-os/media/experience-tracking.webp"); background-position: center; }
.experience-contact::before { background-image: linear-gradient(180deg, rgba(0,0,0,.02) 20%, rgba(0,0,0,.76) 100%), url("/static/asc-os/media/experience-contact.webp"); background-position: center; }
.experience-number, .experience-copy, .experience-action { position: relative; z-index: 1; }
.experience-number { font-size: 12px; font-weight: 750; }
.experience-copy { display: grid; margin-top: auto; gap: 10px; }
.experience-copy small { opacity: .72; font-size: 11px; font-weight: 750; text-transform: uppercase; }
.experience-copy strong { font-size: 54px; font-weight: 610; line-height: 1; }
.experience-copy span { max-width: 430px; opacity: .82; font-size: 14px; line-height: 1.55; }
.experience-action { display: flex; margin-top: 26px; align-items: center; justify-content: space-between; border-top: 1px solid rgba(255,255,255,.28); padding-top: 16px; font-size: 12px; font-weight: 740; }
.experience-action i { font-size: 20px; font-style: normal; }

.expertise { display: grid; grid-template-columns: minmax(300px, .75fr) minmax(0, 1.25fr); gap: 80px; border-top: 1px solid var(--line); padding: 110px 0; }
.expertise-intro { position: sticky; top: 38px; align-self: start; }
.expertise-intro > p:last-child { max-width: 470px; margin: 26px 0 0; color: var(--muted); font-size: 16px; line-height: 1.65; }
.expertise-list { border-top: 1px solid var(--line); }
.expertise-item { display: grid; min-height: 116px; grid-template-columns: 42px minmax(160px, .7fr) minmax(220px, 1fr) 24px; align-items: center; gap: 18px; border-bottom: 1px solid var(--line); transition: padding .2s ease, background .2s ease; }
.expertise-item:hover { padding: 0 14px; background: var(--white); }
.expertise-list span { color: var(--blue); font-size: 11px; font-weight: 750; }
.expertise-list strong { font-size: 24px; font-weight: 610; }
.expertise-list small { color: var(--muted); font-size: 13px; line-height: 1.5; }
.expertise-list i { font-style: normal; }

.market-feature { display: grid; min-height: 780px; grid-template-columns: 1.15fr .85fr; background: #e8eaeb; }
.market-feature-media { min-height: 600px; background: url("/static/asc-os/media/asc-hero-technology.webp") 68% center / cover no-repeat; }
.market-feature-copy { display: flex; flex-direction: column; justify-content: center; align-items: flex-start; padding: clamp(48px, 7vw, 104px); }
.market-feature-copy > p:nth-of-type(2) { max-width: 530px; margin: 28px 0 32px; color: var(--muted); font-size: 16px; line-height: 1.65; }

.tracking-feature { display: grid; grid-template-columns: 1fr .9fr; align-items: end; gap: 70px; padding: 120px 0; }
.tracking-preview { border: 1px solid var(--line); border-radius: 8px; padding: 30px; background: var(--white); box-shadow: var(--shadow); }
.tracking-status { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-size: 11px; font-weight: 720; }
.tracking-status i { width: 8px; height: 8px; border-radius: 50%; background: #24b47e; box-shadow: 0 0 0 5px rgba(36,180,126,.1); }
.tracking-preview > strong { display: block; max-width: 460px; margin-top: 30px; font-size: 30px; line-height: 1.14; }
.tracking-line { display: grid; grid-template-columns: repeat(4, 1fr); gap: 5px; margin-top: 36px; }
.tracking-line span { height: 4px; border-radius: 4px; background: #dce1e6; }
.tracking-line span:nth-child(-n+3) { background: var(--blue); }
.tracking-preview a { display: flex; margin-top: 32px; justify-content: space-between; border-top: 1px solid var(--line); padding-top: 18px; font-size: 13px; font-weight: 750; text-decoration: none; }

.contact-section { border-top: 1px solid var(--line); padding: 110px 0 80px; }
.contact-heading { display: grid; max-width: 850px; }
.contact-heading > p:last-child { margin: 22px 0 0; color: var(--muted); font-size: 16px; }
.contact-list { margin-top: 48px; border-top: 1px solid var(--line); }
.contact-list a, .contact-list > div { display: grid; min-height: 92px; grid-template-columns: 180px minmax(0, 1fr) 28px; align-items: center; gap: 24px; border-bottom: 1px solid var(--line); text-decoration: none; }
.contact-list span { color: var(--muted); font-size: 12px; }
.contact-list strong { overflow-wrap: anywhere; font-size: 20px; font-weight: 580; }
.contact-list i { font-style: normal; }
.contact-empty { display: grid; margin-top: 42px; gap: 7px; border-top: 1px solid var(--line); padding-top: 24px; }
.contact-empty span { color: var(--muted); font-size: 13px; }

.site-footer { display: grid; width: min(1440px, calc(100% - 64px)); min-height: 120px; margin: 0 auto; grid-template-columns: auto 1fr auto; align-items: center; gap: 24px; border-top: 1px solid var(--line); }
.site-footer strong { font-size: 16px; }
.site-footer span { color: var(--muted); font-size: 12px; }
.site-footer a { font-size: 12px; font-weight: 700; text-decoration: none; }

[data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
[data-reveal].is-visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
    .site-header, .hero-content, .experience-showcase, .expertise, .tracking-feature, .contact-section, .site-footer { width: min(100% - 36px, 1440px); }
    .hero-shade { background: linear-gradient(90deg, rgba(249,250,248,.96), rgba(249,250,248,.76) 58%, rgba(249,250,248,.12)); }
    .experience-grid, .expertise, .tracking-feature { grid-template-columns: 1fr; }
    .expertise { gap: 50px; }
    .expertise-intro { position: static; }
    .market-feature { grid-template-columns: 1fr; }
    .market-feature-media { min-height: 58vw; }
}

@media (max-width: 720px) {
    .site-header { min-height: 70px; }
    .nav-trigger { display: grid; width: 40px; height: 40px; place-content: center; gap: 5px; border: 0; border-radius: 6px; background: rgba(255,255,255,.76); }
    .nav-trigger span { display: block; width: 18px; height: 1px; background: var(--ink); }
    .site-nav { position: absolute; top: 62px; right: 0; display: none; width: min(290px, calc(100vw - 36px)); align-items: stretch; flex-direction: column; gap: 0; border: 1px solid var(--line); border-radius: 8px; padding: 8px; background: rgba(255,255,255,.96); box-shadow: var(--shadow); backdrop-filter: blur(18px); }
    .site-nav.is-open { display: flex; }
    .site-nav a { padding: 13px 12px; }
    .site-nav .management-link { border: 0; border-radius: 4px; background: var(--ink); color: #fff; }
    .hero { min-height: 86svh; }
    .hero-image { object-position: 58% center; }
    .hero-shade { background: linear-gradient(90deg, rgba(249,250,248,.97) 0%, rgba(249,250,248,.88) 54%, rgba(249,250,248,.2) 100%); }
    .hero-content { min-height: 86svh; padding: 108px 0 78px; }
    .hero h1 { font-size: 64px; }
    .hero-statement { font-size: 31px; }
    .section-heading h2, .expertise h2, .market-feature h2, .tracking-feature h2, .contact-section h2 { font-size: 42px; }
    .experience-copy strong { font-size: 42px; }
    .hero-copy { max-width: 280px; font-size: 14px; }
    .hero-actions { max-width: 310px; }
    .button { flex: 1; min-width: 138px; }
    .text-action { width: 100%; margin: 8px 0 0; }
    .hero-scroll { display: none; }
    .experience-showcase { padding: 78px 0; }
    .section-heading { align-items: flex-start; flex-direction: column; }
    .experience-grid { grid-template-columns: 1fr; }
    .experience-card { min-height: 410px; padding: 22px; }
    .expertise { padding: 78px 0; }
    .expertise-item { min-height: 110px; grid-template-columns: 30px minmax(0, 1fr) 20px; gap: 12px; }
    .expertise-list small { grid-column: 2 / 4; padding-bottom: 16px; }
    .market-feature { min-height: 0; }
    .market-feature-media { min-height: 390px; }
    .market-feature-copy { padding: 54px 18px 62px; }
    .tracking-feature { gap: 38px; padding: 78px 0; }
    .tracking-preview { padding: 22px; }
    .tracking-preview > strong { font-size: 24px; }
    .contact-section { padding: 78px 0 58px; }
    .contact-list a, .contact-list > div { min-height: 94px; grid-template-columns: 95px minmax(0, 1fr) 18px; gap: 12px; }
    .contact-list strong { font-size: 15px; }
    .site-footer { min-height: 140px; grid-template-columns: 1fr; align-content: center; gap: 7px; }
}

@media (max-width: 390px) {
    .site-header, .hero-content, .experience-showcase, .expertise, .tracking-feature, .contact-section, .site-footer { width: calc(100% - 28px); }
    .site-brand img { width: 32px; height: 32px; }
    .hero h1 { font-size: 56px; }
    .hero-statement { font-size: 28px; }
    .experience-card { min-height: 380px; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
    [data-reveal] { opacity: 1; transform: none; }
}